package com.itheima.homework;

import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Objects;

/**
 * @Author 王加鑫
 * @Date 2021/5/16 20:16
 * @Version 1.0
 * 3、【编号：1604】现需要将一些学生对象（属性包含姓名和年龄），与其地址，一一对应存储，并查看存储效果，要保证学生对象不重复，请编写程序实现以上需求，运行效果如下：
 * Student{name='小红', age=20}---北京海淀
 * Student{name='小黄', age=22}---北京朝阳
 * Student{name='小白', age=25}---北京海淀
 * Student{name='小蓝', age=23}---北京顺义
 * Student{name='小绿', age=21}---北京昌平
 */
public class Demo03 {
    public static void main(String[] args) {
        LinkedHashMap<Student,String> map = new LinkedHashMap<>();
        Student student1 = new Student("小红",20);
        Student student2 = new Student("小黄",22);
        Student student3 = new Student("小白",25);
        Student student4 = new Student("小蓝",23);
        Student student5 = new Student("小绿",21);
        map.put(student1,"北京海淀");
        map.put(student2,"北京朝阳");
        map.put(student3,"北京海淀");
        map.put(student4,"北京顺义");
        map.put(student5,"北京昌平");

        map.forEach((k,v) -> System.out.println(k + "---" + v));

    }
}

class Student{
    private String name;
    private int age;

    public Student() {
    }

    public Student(String name, int age) {
        this.name = name;
        this.age = age;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    @Override
    public String toString() {
        return "Student{" +
                "name='" + name + '\'' +
                ", age=" + age +
                '}';
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) return true;
        if (o == null || getClass() != o.getClass()) return false;
        Student student = (Student) o;
        return age == student.age &&
                Objects.equals(name, student.name);
    }

    @Override
    public int hashCode() {
        return Objects.hash(name, age);
    }
}
